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This article in AJ

  1. Vol. 48 No. 5, p. 212-216
    Received: Jan 11, 1956

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Variation and Inheritance of Fertility and its Components in Bromus inermis Leyss1

  1. J. G. Raeber and
  2. R. R. Kalton2



Analysis of 20 S0 clones of bromegrass and S1 segregates for fertility attributes revealed the following 2-year grand means for all S0 clones: fertility percentage, 52.1; number of florets per panicle, 288; and number of seeds per panicle, 150. Differences among clones were all highly significant in each of the 2 years. Compared with S0 most S1 families showed substantial decreases in fertility percentage and seeds per panicle. Genetic segregation for fertility percentage was indicated in all families. Florets per panicle and fertility percentage showed little or no relationship, while seeds per panicle and fertility percentage showed strong positive phenotypic and genetic correlations. Results indicate that fertility is moderately heritable in bromegrass.

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